Window construction



Dec. 16, 1941. H. M. WOELFEL 2,266,387

WINDOW CONSTRUCTION Filed sept. 28%'1938 3 sheets-Sheet 1 mvsnfon HARoLoMwoELr-'EL E? le i5 .23 36 ges Dec. 16, 1941.

v H. M. WOELFEL wINDow CONSTRUCTION Filed Sept. -28, 1938 3 Sheets-Sheet 2 FIG. E'

lNvEnn-on HAR oLuMwoELFEL AT1-ORN EY Dec. 1e, 1941.v H. M. WOELFEL 2,266,387

WINDOWCONSTRUCTION Filed sept. 28, 19:58 5 sheets-sheet s INVENTOR HAROLDJVLWOELFEL ATTORNEY Patented Dec. 16, 1941 CONSTRUCTIQN Harold M. Woelf'eil, .MontreaL Quebec, Canada,

assig-nor to The Montreal, Quebec, Canada `'Applincatimi September 28, 1938,.'Se1fial No.5232f173 (o1. iso-64) f This `invention. relates :to :an improved window assembly for use in :ai-r conditioned railway qcalrs fand -in other: relations.

`One eobject of :the invention ris :to fprouide simple and easily :applied seal-ing and lshock labsorbing means or-detachably securing fa windowfsash in fixed position within .a window drame. Thislobect is Iaccornlclished :by .ii-tting 'the :sash between resilient 'inner and router sealing members 1made of rubber or other ysuitable :shock absorbing material, Asaid ,sealing members engaging the atop, bottom and side rails `.of :the .sash with suflicient pressure to fpreventrattling of thefsas-h, in addi- .tion to providing a tight foin-t :between the :sash

rails and adjacent portions .of fthe window frame. s..

The sealing member :at fone :side :of the :sash is ixed-ly secured @to the window frame vbut thesealing member .at the opposite -side aof the lsash is adjustable :in the Window `fra-me vto wary its .'e'ffective pressure against the sash rails. f 4Another object of the invention to 'provide a4 :metal window .sash and .frame assembly in which heat oonductingfmembers, linsulatelzl .from the .metal window frame, :are :employed for conducting heat from the interior of the enclosure in which Vthe Window fass'emblyzis installed .to the metal vrails :of the sash :to prevent ffrostin11g" thereof .in J:cold weather. Ello this -end thewindow is .equipped with .a .metal sill which contacts 'the bottom .rail of .fthe :sash .and is insulated from fthe metal -of the wjndow .fra-me vby fsu-i-table thermal insulatingmeans, said sill beingfpheferably made of aluminum `of .suicient thickness to serve as a' good -heat conductor. The invention alsooofntemplatesconduction -of heat to the side irails of the sash .th-rough :meta-l curtain .guides for :other metal relements which constitute part Iof .the inside trim of the Window and are insulated Vfrom the metal of .the window `fram-ing.

.Other .ob-jects, .advantages .and :characteristic features vof the invention will be more readily understood .from the .following detailed description Ataken in .connection with the accompanying drawings, in which Eig. A1 is a vertical sectional viewfof a .poiiton of .the wall .structure fof fa railway ca-r equipped with -my improved Window assembly.

Fig.. 2 is a transverse :sectional View falongthe line .2-2.of.Fig. l.

-Fig. 3 is .an 7enlarged sectional viewioi the -sill or Vj amb construction .appearing in Fig. l.

Referring .more particularly rto the drawings, 5 .designates Ia `double .glazed :insulating `sash mounted the liv-iniziati7 `frame LIi of a `stee1pzrail waycar -1.saidframe'beingzboundedrat thesides 55 sash .trame .23 in ffii) by sheet `meta-1 window posts ,f8 extending trom the metal fsil-l rail to the meta-1 .head rail for l-intel sl i).v #Sash ,5 :is rheld `in place between :outer and iinner sealing :and :shock absorbing members respeotivelyiindicated at .Il .and I 2. rlhese .sealing and shock absorbing members fare made :of rubber 1orotherresil-ienthook absorbing material in rthe term of .open rectangular iframes presenting atop., .bottom .and :side portions eng-aging fthe corresponding rails fof the sash. .Member :Il is cemented in place within an :inwardly facing .rectangular :channel ;I-,3 pro-vided :at lthe :outer .-side of the .metal Vwindow frame :and lconstitutes a fixed .abutment :for rthe Aouter sides of Vthe :sash rails. .The inner sealing member ,I2 `is `zsecured in the channel I-4 .-of fa rectangular holder .I5 Whichissa snug .sliding dit in the window iframe 5. The pressure with `.,vvh-iclfi ,the rail-s .of .the .sash are gripped between the sealingand :shock ;-ab sorbing members ;I-I :and @|22 ,may -be regulated through sthe agency `of apressure :applying screws I6. The screws JIS .engaging the top portion of the #holder .L5 .are .carried by -.a .downwardly .directed flange II provided attheinner .edge of the metal head rail or .lintel d'0.. The fscrews |.6 vengaging 'the vertical sides of the '.holder lIii are carried by .suitable brackets 'I8 fastened Vto the inner sides of 'the .Window ,posts '8. rJhe remaining screws I6 which engage 'the bottom portion of the holder I"5 .are carriedfby a steel 'bar .|19 located directly above the metal sill rail `9.. y e I After the window s'ashf'has beenitted in place between Lthe 4sealing yand shock absorbingfmemV bers II4 and "I2 fthe'screws :IB are Lturned to `force the hol-der 1Hi 'outwardly un'til `lthe `de'sireil 'foressure is exerted against the vinner 'sides *of the sash reEil-sby Lthe -movable Isealing 'and cushioning member fm.' This pressure may 'therefore be-'convenieritly regulatetlto ensure a "tight I'joir1t`between lthe sash lrails and 'the adjacent portions of @the window frame'. 'in addition 5to their sealing ifand shock absorbing functions V.the members IL'I andfIZ :also serve to prevent rattling -o' ``the sash.A

y'iillaie sash fshownrintthemresent instanceis `made in @accordance with theinvention :disclosed in my prior iS. "Ratent fNo. 52128 ,1870 Igranted Aug. 130, 1.938. It com-prises a preformed multi-:pane glazing unit 22 .mounted vfin '.a fsuitable :sash iframe 23. fUmit 22 `Vcomprises'".-transpfairent indoor zand outdoor panes .24 and 25 space apart rby plastic seating zmeans '125 .interposed :between 'fthe m'arginal edges which anealso held .together aby a 'thin closely flttingfU-.sha'ped :metal frame :231. which :this gglazing mit fis secured comprises inner and outer frame sections substantially L-shaped in cross section. These frame sections are tted together so that their iianges 23 form the side walls of a channel in which the marginal portions of the glazing unit is sealed by a suitable caulking compound. The bottom of the glazing receiving channel is formed by flanges 29 disposed in overlapping relation and held out of direct contact with each other by an interposed layer 30 of fibrous or other suitable insulating material of low thermal conductivity. The flanges 29 are secured together by screws 3| passing through the interposed insulating material 39.

One of the difliculties experienced in connection with metal window sashes, especially when installed in the Window frames of metal railway oars, is the occurrence of what is known as frosting or sweating of the frame. This is due to the transmission of cold from the outside to the inside through the metal of the sash itself or through the metal window frame or other metal parts in contact with the sash. In the present instance the transference of cold from the outside to the inside through the metal of the sash itself is prevented by the insulating effect of the rub-ber sealing and shock .absorbing strips H and l2 and by constructing the sash frame so that the inner and outer frame sections are held out of direct contact with each other by insulating material.

In addition to these safeguards the present invention also provides for conduction of heat from the interior of the car to the inner surfaces of the sash rails to assist in preventing frosting thereof. To this end the window assembly is provided with a metal sill 33 made of aluminum or some other metal which is a good conductor of heat. This sill is mounted on the metal sill rail 9 but is insulated therefrom by interposed thermal insulation 34. This insulation may be composed of wood or other suitable material and is here shown as a laminated body consisting of a plurality of superposed plies cemented or otherwise secured together. It is fastened to the metal sill rail 9 by screws 35 and supports the metals sill 33 which is secured thereto by short screws 36. Since frosting of the heads of the screws 36 is undesirable it is important that these screws should not touch the screws 35 nor the metal head rail 9. Sill 33 is shown mounted on the insulation 3ft so that its inner edge 33a is butted against the bottom rail of the window sash in direct contact therewith. The opposite edge of the sill is bent downwardly and inwardly t provide the flange 3327 which rests on insulating material 3l which forms part of the inside trim or finish of the car. In the winter time a considerable amount of heat is conducted from the interior of the car to the metal sash frame through the metal sill 33 and materially assists in preventing frosting of the inside rail surfaces of the sashes. The cold transmitted from the outside to the inside of the car through the metal sash rail 9 does not affect the heat transferring eiiicienoy of the sill 33 since these parts are completely insulated from each other by the interposed insulating material 34 and 31.

The metal curtain guides 39 applied to the opposing surfaces of the window posts 8 may also be utilized to serve as heat conductors through which heat is conducted from the inside of the car to the side rails of the metal sash. When the curtain guides are used for this purpose they are insulated from the window posts 8 as indicated at 4U and 4|.

As shown to advantage in Fig. l, the outer portions of the adjusting screws I6 engaging the lower rail of the sash may be fitted in suitable openings 34a provided in the laminated insulating body 3E. The openings 34a extend entirely through the insulation 34 and are provided with enlarged inner portions 34h in which the heads of the screws IS are accommodated. The portions 3412 of openings 34a are large enough to permit insertion of a screw driver for turning the heads of the screws.

Having thus described my invention, what I claim is:

l. A window construction comprising a window frame, a rubber cushioning and sealing member fitted in an inwardly facing channel surrounding the window opening of the frame at the outer side of said frame, a sash frame arranged in the window frame with the outer sides of the sash rails butted against said member, a second rubber cushioning and sealing member arranged in said window frame for engagement with the inner side of the rails of the sash frame, a channel frame in which said second sealing and cushioning member is secured, said channel frame being slidably arranged within the window frame at the inner side of the sash frame and being slidably supported in said window frame, bracket members arranged within and secured to said window frame at the inner side of said channel frame and adjusting screws threaded through said bracket members into pressure applying engagement with the inner side of said slidably mounted channel frame.Y

2. A window construction as set forth in claim 1 including a sill member secured to the sill rail of the window frame and covering the lower portion of said slidably mounted channel frame.

3. A window construction as set forth in claim 1 including curtain guides secured to the side members of the window frame and covering the side portions of the slidably mounted channel frame.

4. A window construction as set forth in claim 1 including a sill member secured to the sill rail of the window frame and covering the bottom portion of the slidably mounted channel frame and curtain guides secured to the side members of the window frame and covering the side portions of the channel frame. y

5. A window construction as set forth in claim l in which the top, bottom and side portions of the slidably mounted channel frame are covered by stationary covering members secured to the top, bottom and side members of the window frame.

6. A window construction comprising a metal window frame provided at the outer side with an inwardly facing channel located within a window opening dened by the top, bottom and side mem-v bers of said frame, a non-metallic cushioning and sealing member secured in said channel, a metal sash frame arranged in the window frame out of metal to metal Contact therewith and with the outer sides of the. rails of the sash frame butted against said cushioning and sealing member, a second non-metallic cushioning and sealing member buttedy against the inner sides of the sash rails, a channel frame in which said second sealing and shock absorbing member is secured, said channel frame being slidably arranged within the window opening of the window frame at the v inner side of the sash frame, a heat conducting metal sill member supported on but insulated from the sill rail of the metal window frame, said sill member covering vthe bottom portion of the slidably mounted channel frame and having its outer marginal portion disposed in metal to metal contact with the inner side of the bottom rail of the sash frame.

7. A window construction comprising a metal window frame, a metal sash mounted in said frame between inner and outer sealing and shock absorbing members made of resilient non-metallic material, said sealing members engaging the top, bottom and side rails of the sash and being tightly pressed thereagainst, said sash being mounted between said sealing members so that there is no direct metal to metal contact between the sash and the Window frame, a holding frame in which the inner sealing and shock absorbing member is mounted, said holding frame being slidably arranged in the window frame, means for applying pressure to said holding frame to force the inner sealing and shook absorbing member into pressure Contact with'the sash and a metal sill member mounted on but insulated from the bottom sill rail of the window frame, said sill member being in direct metal to metal Contact with the bottom rail of the sash and serving as a heat conductor for conducting heat to said rail from the interior of the enclosure in which the window construction is installed.

HAROLD M. WOELFEL. 

